diff --git a/.gitignore b/.gitignore
index d3e4ca4..dbe5ef5 100644
--- a/.gitignore
+++ b/.gitignore
@@ -256,3 +256,4 @@ thunderbird-langpacks-3.1.2-20100803.tar.bz2
 /thunderbird-langpacks-78.11.0-20210531.tar.xz
 /thunderbird-langpacks-78.12.0-20210708.tar.xz
 /thunderbird-78.12.0.source.tar.xz
+/thunderbird-langpacks-78.12.0-20210712.tar.xz
diff --git a/sources b/sources
index 0c80e37..6da7659 100644
--- a/sources
+++ b/sources
@@ -8,5 +8,5 @@ SHA512 (nspr-4.25.0-1.el8_0.src.rpm) = 7e39e4484b0d504e1b7f1253d7dc1f9f0d45705fb
 SHA512 (cbindgen-vendor-0.14.3.tar.xz) = 33c8d28547674121f690eea0d3ebac33926a39caacac787bf8ed8b346478822e74da5a4a1f57ab4df4105fa8376739a2ece888845a85bc5712aaed20e4a508bc
 SHA512 (nss-3.53.1-3.fc32.src.rpm) = 368849487aa8f9d602c9e5d9d7c88ebd03318aece12470283ff31744ef9eed27ef1e32031378a5a673bb06a9ebbcf5542afa13f3ad465409449c218922189acb
 SHA512 (nodejs-10.21.0-5.fc32.src.rpm) = 4d0c212a2609dc10e242a96f63baa8babb91e8aa6696f66f627c562c1ba30cb3632ed01991c98f48b5942fc7fd89ee34b350f41de901339b49a2c19e979593a7
-SHA512 (thunderbird-langpacks-78.12.0-20210708.tar.xz) = 89ef31bf7aa0219eaff887595e1e2d2d3b9daeba036836d8c09017f0a361de1666d251ad54332923b5382bdaf34d248c29a919b3271d5cf49080185a51ed5a77
-SHA512 (thunderbird-78.12.0.source.tar.xz) = 6cc80d0486edb04a8513748bc52c27d7b6b50e635eca24fa7ba9d1a71af900ae4d4cb51948e9c100e42b51e07c88a5209ae8ba53f0763b0c9dd0ecf8ddc4a35b
+SHA512 (thunderbird-78.12.0.source.tar.xz) = 8a9275f6a454b16215e9440d8b68926e56221dbb416f77ea0cd0a42853bdd26f35514e792564879c387271bd43d8ee966577f133f8ae7781f43e8bec9ab78696
+SHA512 (thunderbird-langpacks-78.12.0-20210712.tar.xz) = ea243e0c7dbbd2d81675a106b86d02e55914a67ef56696d43ea5a4f211fdfccbc3e52638c0a8bdb264b7005d4432c475b6b5e7610c614cbf1da3e1e6e1f0d462
diff --git a/thunderbird.spec b/thunderbird.spec
index d6302a6..bcd3d64 100644
--- a/thunderbird.spec
+++ b/thunderbird.spec
@@ -178,7 +178,7 @@ end}
 Summary:        Mozilla Thunderbird mail/newsgroup client
 Name:           thunderbird
 Version:        78.12.0
-Release:        1%{?dist}
+Release:        2%{?dist}
 URL:            http://www.mozilla.org/projects/thunderbird/
 License:        MPLv1.1 or GPLv2+ or LGPLv2+
 Group:          Applications/Internet
@@ -190,7 +190,7 @@ ExcludeArch:    s390 ppc
 # From ftp://archive.mozilla.org/pub/thunderbird/releases/%{version}%{?ext_version}/source
 Source0:        https://archive.mozilla.org/pub/thunderbird/releases/%{version}%{?pre_version}/source/thunderbird-%{version}%{?pre_version}.source.tar.xz
 %if %{build_langpacks}
-Source1:        thunderbird-langpacks-%{version}%{?ext_version}-20210708.tar.xz
+Source1:        thunderbird-langpacks-%{version}%{?ext_version}-20210712.tar.xz
 # Locales for lightning
 %endif
 Source2:        cbindgen-vendor-0.14.3.tar.xz
@@ -1310,6 +1310,9 @@ gtk-update-icon-cache %{_datadir}/icons/hicolor &>/dev/null || :
 #===============================================================================
 
 %changelog
+* Mon Jul 12 2021 Eike Rathke <erack@redhat.com> - 78.12.0-2
+- Update to 78.12.0 build2
+
 * Thu Jul 08 2021 Eike Rathke <erack@redhat.com> - 78.12.0-1
 - Update to 78.12.0 build1